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Human Variation & Race

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For environmental stresses, I chose to discuss high altitude and how it negatively impacts the survival of humans. High altitude disturbs homeostasis with many different factors. As stated in our book, "Theses includes, hypoxia, more intense solar radiation, cold temperatures, aridity, wind, a reduce neutral base, and rough terrain."(page 449). However, what makes it difficult for the human body to maintain internal conditions is primarily because hypoxia, where there is a lack of oxygen that reaches the tissues. Hypoxia affects the heart, lungs, and brain and doesn't allow physiological to function correctly.Ultimately, hypoxia is caused by the pressure of the atmosphere due to the high altitude. In addition, reproduction is also affected with more infant deaths. Humans have had the ability to cope with heat for many years. In order to do so, humans made a short term adaption by sweating. Sweating helps the body regulate its temperature. This is done through the sweat gl...
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Language Experiment

Part 1 Going in to this experiment, I had high hopes of this being easy and straight forward. However, a few seconds in to what was practically a one ended conversation, I had difficulty trying to communicate with my partner without speaking. I came in to this thinking it would be similar to a game of charades and my partner would easily be able to understand me. This was not the case. I started to think my partner was just not good at charades because he couldn't make out anything I was doing. I found that without using language, it was hard for me to form sentences. I also used my hands and head more in an attempt to describe what I was trying to say. My partner found this experiment very difficult when we started and couldn't understand anything I was attempting to communicate. There wasn't much room for my partner to make alterations to how they were communicating because we felt there needed to be someone leading the conversation and figured it would be the person capa...
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The Piltdown Hoax

   In the early 1900s, scientists were fooled for more than 40 years by one of the ultimate hoaxes. The classic scientific hoax is known as the Piltdown Hoax. Charles Dawson was the amateur archeologist who claimed he found a piece of an ancient human skull in 1912. Dawson was digging in Piltdown town where he discovered the human remains. He invited geologist Arthur Smith Woodward and paleontologist Pierre Teilhard de Chardin, to the village in Piltdown where they were digging in a gravel pit for the summer. Dawson located a human jaw bone that looked similar to an Ape, and it was thought to be the piece that connects humans to Apes. The fossils supported the theory of Arthur Keith that humans developed big brains before they walked upright. Scientists were extremely happy to hear the news, because now England had ancient fossils like other countries: France, Germany and Asia. However, there were many doubts that were not openly spoken of.  Human faults led to the Piltdo...
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  When taking a looking look at a whale and a hummingbird, it may have never crossed your mind that these two share homologous traits. A whale is a very large sea creature that weighs a ton of pounds and its home resides in the ocean. We are able to see whales come up to surface as they are sea animals that breathe air.  Whales are mammals and give live birth. This is unlike hummingbirds. A bird that flies in the sky weighing in about 0.14oz and is the smallest amongst bird species. Hummingbirds are vibrant with brightly colored wings.They have originated from South Africa and are found in many areas of the world.  Whales and hummingbirds have many differences from size, appearance, to habitats. However these two animals share skeletal bony structures. The skeleton of whales and hummingbirds have similar skulls, humerus, ulna, radius,legs, ribs and phalanges. Over many million of years, whales and hummingbirds have had changes to the skeleton bodys in order to keep up wit...
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